Haven't played any ladder matches, or any custom games for that matter. I figure I'll save everything else till after I finish the campaign, which I'm 19 missions into with 29% achievements. I just looked at the challenges, which seem like they'd be useful tools for any player looking to move their skills from single player to melee.

Diamond is around, I think it depends on the people you play against during placement. I got placed in Diamond regularly during beta, even if I lose a placement match. Like if I'm 3-0 in placement and my fourth game is against someone who is 0-3, that win probably won't bump me to Diamond.

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